ClassCastException when merging PDFs using PDFMergerUtility
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Key: PDFBOX-724
URL: https://issues.apache.org/jira/browse/PDFBOX-724
Project: PDFBox
Issue Type: Bug
Components: Utilities
Environment: Windows Vista 32-bit, Java 1.5.0_06, PDFBox Head tag
(revision 941850)
Reporter: Adam Nichols
Fix For: 1.2.0
On line 496 of PDFMergerUtility, "target" is cast as a COSObject without
checking the type. In some circumstances target will be a COSDictionary which
will cause the following ClassCastException.
java.lang.ClassCastException: org.apache.pdfbox.cos.COSDictionary
at
org.apache.pdfbox.util.PDFMergerUtility.cloneMerge(PDFMergerUtility.java:496)
at
org.apache.pdfbox.util.PDFMergerUtility.cloneMerge(PDFMergerUtility.java:533)
at
org.apache.pdfbox.util.PDFMergerUtility.cloneMerge(PDFMergerUtility.java:491)
at
org.apache.pdfbox.util.PDFMergerUtility.appendDocument(PDFMergerUtility.java:283)
at
org.apache.pdfbox.util.PDFMergerUtility.mergeDocuments(PDFMergerUtility.java:193)
at com.xldynamics.common.PdfBoxTest.main(PdfBoxTest.java:40)
I will provide a patch once I've fixed this and tested it thoroughly. The
example PDFs I have contain sensitive information, so unfortunately I can not
provide them.
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